INFLUENCE OF NaOH CONCENTRATION ON THE PROPERTIES OF CLASS C FLYASH BASED GPC
| Main Authors: | R.Manickavasagam, G.Mohankumar |
|---|---|
| Format: | Article Journal |
| Terbitan: |
, 2017
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/291822 |
Daftar Isi:
- Geopolymer concrete is a recent development in the concrete research aiming for an alternate for the conventional cement concrete. As the rate of emission of CO2 from cement and concrete industries is increasing day by day, more more researchers are diverted to investigate an alternate binder to conventional Portland cement. Geopolymer in its most effective development process involve the utilisation of a source material with sodium based alkaline activator and hot curing at 60oC-100oC.However, it is still in the laboratory level due to many constraints like, typical constituents, casting procedure, hot curing and compatibility with the reinforcing or prestressing steel. Also, most of the works reported are based on low calcium flyash and onlya few studies using high calcium flyash. Therefore, being more cementitious, development of GPCusing high calcium flyash with sodium based activating solution having liquid ratio of 2.5 isdealt. The influence of Molaity on the workability and strength of three grades of GPC equivalent to conventional M20, M30 and M40 grades of cement concrete are studied.It is observed that the expected strength of GPC can be achieved for specific molarity of NaOH by hot curing.